docs: def state_nums():
    """
    Get a dictionary of state names mapped to their 'legend' value.
  
    Returns:
      dictionary of state names mapped to their numeric value
    """
    st_nums = {}
    fname = pkg_resources.resource_filename(__name__, 'resources/States.csv')
    with open(fname, 'rU') as csvfile:
      reader = csv.reader(csvfile, delimiter = ',')
      i = 0
      for row in reader:
        st_nums[row[0]] = i
        i = i + 1
    return st_nums